django-unicorn affected by component state manipulation via unvalidated attribute access

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

• CVE-2026-31815: 0.22% estimated exploitation activity in the next 30 days; percentile 12.97 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary Component state manipulation is possible in django-unicorn due to missing access control checks during property updates and method calls. An attacker can bypass the intended ispublic protection to modify internal attributes such as templatename or trigger protected methods. Vulnerability Details: Component Access Control Bypass Security analysis identified that the framework fails to enforce visibility boundaries defined by ispublic within the action parsers. Specifically, the logic in setpropertyvalue() and callmethodname() utilizes getattr and setattr directly on component instances without verifying if the target attribute or method is explicitly marked as public. Vulnerability resides in: - src/djangounicorn/views/actionparsers/callmethod.py - src/djangounicorn/views/actionparsers/utils.py While Django's template engine restricts rendering to registered directories, an unauthorized user can still force a component to render sensitive templates (e.g., admin layouts) from…

Published by the source

11 Mar 2026, 00:11 UTC

Last modified by the source

13 Jul 2026, 16:43 UTC

Source last checked

26 Oct 2026, 13:37 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-ffv6-jj46-x367

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-ffv6-jj46-x367

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# Patch Next advisory brief: CVE-2026-31815

Advisory: django-unicorn affected by component state manipulation via unvalidated attribute access
IDs: CVE-2026-31815, GHSA-ffv6-jj46-x367
Record: https://patchnext.com/advisories/cve-2026-31815 (revision 2, source checked 26 Oct 2026, 13:37 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: django-unicorn 0.67.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI django-unicorn: affected < 0.67.0; fixed in 0.67.0

## Suggested inspection (read-only)
- `python -m pip show django-unicorn`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on django-unicorn.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-ffv6-jj46-x367 (OSV record GHSA-ffv6-jj46-x367 lists affected ranges: PyPI django-unicorn >=0 <0.67.0 (fixed))
- Verified: https://github.com/advisories/GHSA-ffv6-jj46-x367 (GitHub-reviewed advisory GHSA-ffv6-jj46-x367 lists affected ranges: PyPI django-unicorn >=0 <0.67.0)

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